COMMENTARY | Forests across much of North America need fire to maintain healthy structures and watershed conditions and support biodiversity.
“It was like a mass exodus of toads.”
Some Montana lawmakers oppose "free-roaming" bison, fearing disease and destruction. Proponents say that fear is misguided.
As winters grow warmer in North America, thirsty ticks are on the move.
More than 5,000 invasive species—from plants like cheatgrass to rodents like nutria—inhabit the U.S. causing about $120 billion in economic damage annually.
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